package Collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortPoint {
    public static void main(String[] args) {
        List<Point> list =new ArrayList<>();
        list.add(new Point(5,8));
        list.add(new Point(12,32));
        list.add(new Point(32,8));
        list.add(new Point(21,58));
        System.out.println("原始数据"+list);


        Collections.sort(list, new Comparator<Point>() {
            @Override
            public int compare(Point o1, Point o2) {

                return (o1.getX()*o1.getX()+ o1.getY()*o1.getY())-(o2.getX()*o2.getX()+ o2.getY()*o2.getY());
            }
        });
        System.out.println("排序后list"+list);



    }

}
